20140762 Ver 3_R-2915B Modification Ashe April 7 2017_20170407

STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
ROY COOPER
UOVERNOR
Apri17, 2017
U.S. Army Corps of Engineers
Asheville Regulatory Field Office
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
ATTN: Mr. Steve Kichefski, NCDOT Regulatory Coordinator
JAMES H. TROGDON, III
SECRETARY
Subject: Request for Modification to the Section 404 Individual Permit and Section 401
Water Quality Certification for the proposed US 221 Widening from US 421 to US 221
Business/NC 88 in Jefferson in Watauga and Ashe Counties. Federal Aid Project No.
STP-0221(13), Division l 1, TIP No. R-2915, WBS 34518.1.1.
Reference: USACE Individual Permit Action ID SAW-2012-00882, January 7, 2015.
USACE Individual Permit Modification Action ID SAW-2012-00882, August 31, 2016.
NCDWR Project No. 20140762, Certification No. 4001, September 8, 2014.
NCDWR Project No. 20140764_v2, Certificarion No. 4001, August 23, 2016.
Dear Sir:
The purpose of this letter is to request a modification to the United Stated Army Corps of Engineers
(USACE) Section 404 Individual Permit and North Carolina Division of Water Resources Section 401
Certification for the above referenced project. The origina12014 permit application and subsequeni 2016
modification application (referenced above) presented final impacts for R-2915A, R-2915B, R-2915C,
and R-2915D. This modification presents changes to two permit sites in the B Section needed as a result
of a driveway modification and new temporary wetland fill. The last section, R-2915E, is currently
scheduled to let in September 2019. A permit modification for the final impacts for R-2915E will be
submitted prior to let.
All changes in impacts due to the two modified sites in the B Section are in red italics. Please see the
enclosed revised permit drawings for Section B.
Summary of R-2915 Jurisdictional Impacts:
The preliminary projected impacts for the overall (Sections A-E) project will be approximately 3.11 acres
of permanent wetland impacts, 0.15 acre of'temporary wetland impacts, 8,156 linear feet of permanent
stream impacts (6,983 linear feet of fill and 1,173 linear feet of bank stabilization), and 0.34 acre of
temporary stream impacts (see Tables 1 and 2 for a breakdown of impacts by Section).
Mniling Address: Tedephone: [phone] I,ocation:
NC DEPARTMLNT OF TRANSPORTATTON Fax: [phone] I020 BTRCH RIDGE DRNF
NATURAL ENVTRONMENT SGCTiON C�ustomer Service: 1-877-368-4968 RALCiaH NC 27610
1 S9�' MAIL SERV ICE CENTER
Ra�e��F� NC 27699-1598 Website: www.ncdot.gov

Table 1— Summar of Wetland Im acts for R-2915
Design Wetland Wetland Impacts
Section Stage wetland Impact Type Impact Area Requiring
(ac) Miti ation (ac
Perin. Wetland Fill 0.48
Excavation in Wetlands 0.01
R-2915A Fina] 0.57*
Mechanized Clearing in Wetlands 0.08
Hand Clearing in Wetlands 0.05�
Perm. Wetland Fill 0.32
R-2915B Final Excavation in Wetlands 0.04 0.43*
Mechanized Clearin in Wetlands 0.06
Tem ovaY FiU in Wetlands 015
Perm. Wetland Fill 0.22
R-2915C Final Excavation in Wetlands -- 0.27*
Mechanized Clearin in Wetlands 0.05
Perin. Wetland Fill 1.01
R-2915D Final Excavation in Wetlands 0.01 1.32
Mechanized Clearing in Wetlands 0.30
Perm. Wetland Fill 0.43
R-2915E Preliminary Excavation in Wetlands -- 0.52
Mechanized Clearin in Wetlands 0.09
Total 3.11
j�Additlonally, 0.01 acre of temporary till ln wetlands w111 occur ln the hand clearing areas for erosion control measures
* Values are based on rounding, due to calculating totals with actual numbers to the thousandths
Table 2— Summar of Stream Im acts for R-2915
Design Impact Temporary Stream Impacts
Section Stage Stream Impact Type Length (lfl Impacts (ac) Requiring
Miti ation (1�
PermanentFill 1,119 --
R-2915A Fina] Bank Stabilization 402 __ 1,119
Tem orary -- 0.05
Permanent Fill 493 --
R-2915B Final Bank Stabilization 411 __ 493*
Tem orary -- 0.15
Permanent Fill 2,339 --
R-2915C Final Bank Stabilization 234 -- 2,339
Tem orar -- 0.09
Permanent Fill 2,627 --
R-2915D Final Bank Stabilization 126 __ 2,627
Tem ora -- 0.05
Permanent Fill 405
R-2915E Preliminary 405
Tem ora -- <0.01
Total 8,156 0.34 6,983
* See 7'able 4
R-2915 Individual Permit Modification Application Page 2 of 5

Tables 3 and 4 summarize the impacts to jurisdictional water resources for the final design of R-2915B.
Site numbers correspond with the permit (hydraulic) drawings included in this application. The stream
and wetland numbers correspond to the NRTR. A brief description of the impact sites that have changed
since the 2014 permit application the will follow the tables.
Table 3- R-2915B Wetland Im acts*
Pennanent Tenzporary Impacts
Site Wetland Wetland Fill in Excavation Mechanized Fill in Requiring
Number Size (ac) Wetlands (ac) (ac) Clearing (ac) Wetlands (ac) Mitigation (ac)
4 W 11 0.26 <0.01 -- <0.01 0.15 <0.01
5 W 11 0.26 <0.01 -- -- -- <0.01
6 W 11 0.26 <0.01 -- -- -- <0.01
7 W 11 0.26 0.05 0.03 -- -- 0.08
8 W 12 0.05 <0.01 -- <0.01 -- <0.01
11 W 14 0.02 <0.01 -- <0.0 ] -- <0.01
12 W15** 0.12 O.12 -- <0.01 -- 0.12
14 W 16 0.04 -- 0.01 <0.01 -- 0.02
15 W126** 0.19 0.14 -- 0.05 -- 0.19
Total Impacts: 0.32 0.04 0.06 0.15 0.43***
* All wetlands impacted are riparian
** Total take of wetland
*** Values are based on rounding, due to calculating totals with actual numbers to the thousandths
l able 4- K-Ly 1513 Jtream lm acts
Stream Name & Temporary Mitigation
Stream Impact Length Z
Site Intermittent (I) or Impact Type Impacts Requirement
Perennial (P) ' Number (linear feet) (acres) (linear feet)
Perm. Fill 170 -- USACE & DWR
lA UT to Gp� Creek S32 Bank Stabilization 44 -- DWR
Temp Fill -- <0.01 --
Perm. Fill 15 -- USACE & DWR
1B Gap Creek (P) S1 Bank Stabilization 35 -- DWR
Tem Fill -- <0.01 --
UT to Gap Creek Perm. Fill 34 -- USACE
2 �P� S35 Bank Stabilization -- -- --
Temp Fill -- -- --
Perm. Fill 71 -- USACE
UT to Gap Creek
3 �P� S35 Bank Stabilization -- -- --
Temp Fill -- -- --
4 N/A (wetland -- -- -- -- --
onlY)
5 N/A (wetland
onl )
6 N/A (wetland
onl )
� N/A (wetland
onl )
g N/A (wetland
onlY)
R-2915 Individual Permit Modification Application Page 3 of 5

Table 4 continued — R-2915B Stream Im acts
Stream Name & Temporary Mitigation
Stream Impact Length Z
Site Intermittent (I) or Impact Type Impacts Requirement
Perennial (P) � Number (linear feet) �acres) (linear feet)
UT to Gap Creek Pern�. Fill 124 -- USACE
9 �� S36 Bank Stabilization 23 -- --
Tem . Fill -- -- --
Perm. Fill -- -- --
10 Gap Creek (P) S1 Bank Stabilization 154 -- DWR
Tem . Fill -- 0.02 --
11 N/A (wetland
onl )
12 N/A (wetland
onl )
Perm. Fill 52 -- USACE
UT to Gap Creek
13 �� S40 Bank Stabilization -- -- --
Tem . Fill -- <0.01 --
14 N/A (wetland
only)
15 N/A (wetland
onl )
Perm. Fill 27 -- USACE
16 UT to GP� Creek S42 Bank Stabilization 9 -- --
Temp. Fill -- -- --
Perm. Fill -- -- --
17 Gap Creek (P) S1 Bank Stabilization 54 -- DWR
Tem . Fill -- -- --
Perm. Fill -- -- --
18 Gap Creek (P) S1 Bank Stabilization 53 -- DWR
Tem . Fill -- -- --
Perm. Fill -- -- --
South Fork New
19 River (P) S43 Bank Stabilization --- -- --
Tem . Fill -- 0.12 --
Perm. Fill -- -- --
South Fork New
�� River (P) S43 Bank Stabilization 19 -- --
Tem . Fill -- -- --
Perm. Fill -- -- --
South Fork New
21 River (P) S43 Bank Stabilization 20 -- --
Tem . Fill -- -- --
Total Temporary Impacts: -- 0.153 --
Total Permanent Impacts (Perm. Fill + Bank Stabilization): 904 -- --
Permanent Impacts Requiring DWR Mitigation: 525 -- --
Permanent Impacts Requiring USACE Mitigation: 493 -- --
Total Impacts Requiring Mitigation: 493 -- -�
1— All streams are Class C; Tr+ waters except S43 (South Fork New River), which is WS-V; HQW
2— Mitigation for bank stabilization impacts required by DWR — not required by USACE
3— Values are based on rounding, due to some of the individual impacts being <0.01 acre
-� — Final mitigation requirement will be up to the USACE and DWR
R-2915 Individual Permit Modification Application Page 4 of �5

Permit Site 3: Due to landowner and constructabiliry issues, the drivewriy at Site 3 ltus been modifted
such that it crosses S35 in a location further downstream than previously permitted. A new 29" pipe
will be installed in this location, resulting in 71 linear feet (1� of per►nanent impacts to 535. Tlzis is 40
If less iinpact than previously permitted.
Permit Site 4: The existing 30" RCP which drains to W 11 is being replaced with a new 12" RCP. There
will be <0.01 acre of permanent wetland fll and <0.01 acre of inechanized clearing in W 11 at the outlet
of the new pipe. While perforrrring cut work on tlze opposite side of tlte road, a storm waslted sediment
into tfie weUand. Due to the lack of otf:er options nt the time, the decision was made (with the
agreement of NCDWR) to install baffles an�l use WIl us a te`rtpornry sedi`rtent bnsin to protect Gap
Creek. After construction, tfre baffles will be removQd �as well �ss the sediment, Wetlan�l dimensions
will be reestablished, seeded witla a native seed mix, and coir fiber »tntting ivill be pince�l on t{te bank.
This will result i�t 0.15 �ecre of temporary wetland fzll to Wll.
MITIGATION
At this time, DMS is providing compensatory mitigation for Sections A, B, C, and D impacts. Table 5
summarizes the total mitigation needs as 2.59 acres of wetlands impacts and 6,578 linear feet of stream
impacts. Compensatory mitigation for Section E will be provided accordingly during the subsequent
permit modifcation. This modification will occur when final design on the remaining Section has been
completed.
Table 5 — Summarv of
Section
R-2915A
R-2915B
R-2915C
R-2915D
Design Stage
Final
Final
Final
Final
Total
uested from DMS
Wetland Impacts Requiring Stream Impacts Requiring
Mitieation (acl Miti�ation (lfl
0.57
0.43
0.27
132
2.59
1,119
493
2.339
578
* At tllis ti»re, 6,618 lf of strenn: mitrgnlio�t is requested from D�YIS. However, this ntodiftcntiar resulls ii: a 401f reductio�t iit
»rilignble slren»: impncts. Upon project conrplelion !he request to DMS will be nrodified Jo rejlect Nris chnfige.
REGULATORY APPROVALS
Section 404: Application is hereby made for a modification to the USACE Individual 404 Permit as
required for the above-described activities.
Section 401: We are hereby requesting a modification to the 401 Water Quality Certification from the
N.C. Division of Water Resources.
A copy of this application and distribution list will also be posted on the NCDOT website at:
http://connect.ncdot.gov/resources/Environmental. If you have any questions or need additional
information, please contact Erin Cheely at [e-mail] or [phone].
Sincerely,
�(-Philip S. Harris III, P.E., C.P.M.
Natural Environment Section Head
R-29151ndividual Permit Modification Application Page 5 of 5

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See Sheet 9-A Fcr Index of Sheets
See Sheet 9 6 Fo� Gonventlonol �ymbols
��_�11�� �� ����1L1�L ��������
WETLAND AND SURFACE WATER IMPACTS PERMIT
NCDOT CONTACT: BRENDA L. MOORE, P.E.
,v � ACCESS BEING� LIMITED TO��ONE�DRIVEWAY PER PARCEL.
THIS PROJECT IS NOT WITHIN ANY MUNICIPAL BOUNDARIES.
CLEARING ON THIS PROJECT SHALL BE PERFORMED
TO THE LIMITS ESTABLISHED BY METHOD III
HYDRA ULICS ENGINEER
GRAPHIC SCALES DESIGN DATA PROJECT LENGTH Prepored in tne off�ce �f:
ADT 2015 = 12,os9 CDM Smith
5� 2$ 0 5� ��0 SA00 Glenwood Avenue, Suite 300, Raleigh, NC 27612 �� GB�R�\
���� �� � ADT 2035 = 20,204 _ �� ���
PLANS DHV = 10 % LENGTH ROADWAY TIP PROJECT R-29156 1.675 MILES zoiz szaxnnxn srEcrFrcnrroxs �� ��s
�
P.E. �
D = 65 % SIGNATURE: `�
50 25 0 50 loo LENGTH STRUCTURE TIP PROJECT R-2915B = 0.094 MILES RIGHT OF WAY DATE: DOUGLAS B. SAUNDERS, P.E. � �
ROADWAY DESIGN �
� T= 9 %* SEPTEMBER 30, 2013 PRmscr E,vcrxE�aa ENGINEER ���� ��a�
PROFILE (HORIZONTAL) V= 50 MPH TOTAL LENGTH TIP PROJECT R-2915B = 1.769 MILES �'� pr�a.e��` �
�0 5 0 �0 2p * TTST 2% DUAL 7% LETTING DATE: RICKY E. STATON
FUNC CLASS=ARTERIAL JUNE 16, 2015 PRo�scr Dssrcx ExcnvsEx
I I I I \\ .— STATEWIDE TIER P.E.
PROFILE (VERTICAL)
S7GNATURE:

DETAIL #1
LATERAI GRASSED SWALE
� Not �o Smle)
b �{
Nat�ral � I flLl
Gro�nd 3:� p g�� �^�t. S�oPE
� ,, � Min. D=1.0 Ft.
�. � B-2.0 F.
6=5.0 F.
FROM STA.160+20 TO STA.161+00 -L- RT
FROM STA. 234+35 TO STA. 238+00 -L- RT
DETAIL #2
TOE PROTECTION
INo��o scaiei
F�o��e<
Notural 1.� ;�S\oee
Ground �-b--.{ F
I I �d
d-2.0 Ft.
6=2.0 Ft. Geotex�ile
Type of L'�ner= Class'B' Rip-Rap
FROM STA. 761 i� 00 TO STA. 161 I� 70 -L- RT
FROM STA. 197+50 TO STA. 197+80 -L- RT
FROM STA.250+00 TO STA.251 '�-50 -L- RT
FROM STA.251 I�00 TO STA.2521�50 -L- LT
FROM STA.15+05 TO STA.15+50 -DRIREV- RT
FROM STA.I5+00 TO STA.I5+50 -DRIREV- LT
DETAIL #3
$iANDARD BASE DITCH
�No�ro Scole)
ural rvo�urol
G.ound ��� �,� Gro�nd
d �
�ea�ex��le 0 Min. D=1.0 Ft.
Max.d=1.5 Ft.
wV�eN e is , 6.0' 8=3.0 Ft.
Sid. a. 8)6.01
Type af Liner= Class'I' Rip-Rop
STA. 166+00 -L- LT
DETAIL #4
SPECIAL CUT DITCH
(Norio s�aie�
Natural p.�o� D'oF
Gro„�d ?�/ p F�o"s` Slove
d
�eo�ex��le Min. D=1.0 Ft.
Type oft'iner= Closs'B'Rip-Rap Mox.d-1.0 Ft.
FROM STA. 16+20 TO STA. 16+90 -Y9- RT
DETAIL #5
STANDARD BASE DIiCH
� N � m s�oi�I
Na��.ai �,oi
G.ound 2�� p .�,� G�o�nd
d
ceo�e.��le 8 Min. D=1.0 Ft.
Max. d=1.5 ff.
^when e �s . e.o 8=2,0 Ft.
Type o4 Liner= Closs 'I' Rip-Rap
STA.16+50 -Y9- LT
DETAIL #b
IATERAL GRASSE� SwALE
� Notto Scale)
�Natural Fill
Ground 3:� p 3� �^�{, SLOPE
���NGER � ,, � Min. D=1.0 Ff.
i �. � B=6.0 F.
6=5.0 Ft.
FROM STA.180+00 TO STA.182-00 -L- LT
DETAIL #7
SPECIAL CUT DITCH wMINGE
I Na�+o s�oie�
urol
Ground
�p.1 °� � �i�cF
9� p F�p�le SIoPc
b.a� � Min. D=1.0 Ft.
FROM STA.196+50 TO STA.197+00 -L- RT
DETAIL #8
STANDARD BASE DITCH
( No� fo Scole)
Hai�.ai No�u�oi
Ground Z.� D �.� Ground
Min. �=1.0 Ft. � g �
B=2.0 Ft. �--i
FROM STA.198+80 TO STA. 199-55 -L- lT
RIP RAP AT EMBANKMENT
� Nm m s<oie�
10'min.
on�n
Grode �'��'- 1�0
GEOTEXTILE
��
DETAIL R10
SPECIAL CUT GRASSED SWALE
( Not to Scale)
Nofurol From
Groun :� p A�p�e� Ditch
F Slope
u Min. D=1.0 Ff.
6=2.0 Ft.
FROM STA.271+80 TO STA.215+55 -L- RT
DETAIL #11
BERM DITCH
� No� �o s�aiel u
Oa wE
N 5.0' 8 0' S.0' U
F
io.o'v.C. ?� � JP d
Geo�ex�ile
Min. D� 1_0 F.
Type of Liner- Class'I' Rip Rop Max. d 1.5 Ft.
FROM STA. 171+50 TO STA. 172+75 -L- RT
DETAIL #12
N.G/f.e. � FN �So ScUT
s.o' 2-GI
.1\ d ONe' Fill
R 1,.�
`Esisf. D'itch
Bed P�Pe P�iPe
FROM STA.208+80 TO STA.2091 60 -L- LT
DETAIL #13
STANDARD BASE DITCH
�Nof�o Scale�
ral
Graund 7;� .�� G�ound
d �
Gooie.�iio B Min. D=1.5 Ft.
Max.d=4.0 Ft.
WFen B is > 6.d B=5.0 Ft.
sid. Ho_ s�e.oi
TypeofLiner� Class'I'Rip-Rap
STA. 217+50 -L- RT
DETAIL #14
SPECIAL CUT GRASSED SWALE
( Nor io Swle)
No�fu�al � Front
Gr d :� p A�ptte� Diich
F Slope
� Min. D=1.0 Ft.
B=5.0 Ff.
FROM STA. 222 i� 50 TO STA. 229 I 50 -L- LT
DETAIL #15
SPECIAL L4TERAL 'V' DITCH
�No�+o Scale�
r�n
Natural p� �� Slope
Ground 1:1 D F�oxte�
a
Gea�ex�ile � Min. D=1.0 Ff.
Type of Liner= Closs 'B' Rip-Rap Mox. d=1.0 Ft.
FROM STA.10+55 TO STA.12+18 -Y71- RT
FROM STA.13+95 TO STA.14+55 -Yi2- RT
DETAIL #16
SPECIAL LATERAL BASE DITCH
�Ho��o s�oie�
Noiurol Fill
Ground 2�� A, Me� slope
d p F�o
Geo�e.�ile g
Min. D-1.0 Ff.
Max.d-1.0 Ff.
peofLiner- Class'B'Rip-Rap B�=3.OF1.
DETAIL #17
ROADWAY DITCH
� Hoi ro s�oie�
D'i�ch
, � sioae
Grou�d 4.� D P�\o`te�
d
Gea�eNile Min. �-1.0 Ft.
TypeofLiner= Closs'8'Ri{NRap Mox.d-1.OFt.
FROM STA.252+00 TO STA.255+50 -DET- RT
FROM STA.253+21 TO STA.255+50 -0ET- LT
FROM STA.256+42 TO STA. 261+05 -0ET- RT
FROM STA. 256 � 50 TO STA. 260 I 50 -0ET- LT
DETAIL #18
STANDARD BASE DITCH
�N �to S�nle)
Natural NoN.ol
Ground 7;� .�� Ground
d �
Geo�aade B Min.D=2.0 Ft,
Max.d=2.0 Ft.
'When B is < 6.0' B=i.O F.
Type af Liner= Class 'B' Rip-Rop
STA.13+35 -Y10- RT
DETAIL #19
STANDARD BASE DITCH
iH �ro s�oiel
Gaiural Gor�rvl
ro nd 7:� .�� ro�nd
d �
Gea�ex�ile B Min. D�-2.0 Ft.
Max.d=1.0 Ft.
'when B is < 6.0' 8=3.0 Ft.
Type of Liner= Class 'I' Rip-Rop
STA.222+69 -L- RT
DETAIL #20
(ATERAL GRASSED SWALE
(No+to Scale)
��Natvral FILI
Gro�nd 3:� p 3�� j"/Ft. SLOPE
� p � Min. D=1.0 Ft.
1.=-.! B=3.0 Ft.
6-5.0 Ff.
FROM STA. 244+00 TO STA. 247+00 -L- LT
DETAIL #21
LATERAL 'V' DITCH
1 No� ro s�aie�
Now,oi � I ---- � F�n
Gro��d 1:l 1.� t^hi. Slope
D
Min. D=1A Ft.
b-5.0 Ft.
FROM STA. 247+00 TO STA.249+00 -L- LT
DETAIL #22
L4TERAL BASE DITCH
�Norb S�ole�
Noe rol �
Gaund Z.� p ry�� ����, Fill
sioae
� o I Min. D=1.0 Ft.
�='� 8=4.0 F�.
b - 5.0 F�.
FROM STA. 242+60 TO STA. 248+50 -L- RT
DETAIL #23
L4TERAL BASE DITCH
( Ho� �o S�ala�oPe
Nm�,�i I --- � u
Gro�nd 2.) p �,.iff
d
vEo1e'xn�[ B Min. D=1.5 Ft.
Mon. d=1.5 Ft.
'when B'�s � 6.0' B=4.0 Ft.
Type of Liner= CL'I' Rip-Rap 6=5.0 Ft.
FROM STA.248+50 TO STA. 250+00 -L- RT
DETAIL #24
STANDARD BASE DITCH
�rvo�ro s�oie�
Nai�.ai Nm�,oi
Ground Z.� ,t.\ Gro�nd
D
Min. D=1.0 Ft. � g I
8=3.0 Ft. � -i
FROM STA. 243+50 TO STA. 244+00 -L- LT
PERMIT DRAWING
SHEET 2 OF 31
DETAIL #25
SPECIAL CUT DITGH
�Horro s�oia)
� o� D'il<F
ry' sloae
Grou�d ?.) D ��o�te
d
Gea�e.�ile Min. D-1.0 F.
Type of Liner= Qass 'B' Rip-Rap Mox. d-1.0 Ft.
FROM STA.16+40 TO STA.19+00 -DRIREV- LT
FROM STA.75-50 TO STA.16+05 -DRIREV- LT
FROM STA. 10+20 TO STA. 10+50 -DR2REV- RT
FROM STA. 10 �r 15 TO STA. 10 �i� 50 -DR2REV- LT
DETAIL #27
STANDARD BASE GRP.SSED SWALE
( Not ro Smle)
Not�rol Na�ru�al
Groun pR , ����
FCq D F�p
�FR �O� Min. D=1.0 F}.
B
�NorEs�. B=2.0 F}.
1) LONGIiUDINAL SLOPES BETNEEN 0.3% AND 4.�%.
2) MODIFICATIONS MAY BE NEEDED,AS APPROVED BY
ENGINEER.
FROM STA. 233+80 TO STA. 234+35 -L- RT
DETAIL #28
LATERAL BASE DITCH
� rvo� o S�nle)
I -- �
No�urol
Gro��d z� p 1� .�F�. F;il
Slopo
� e � Min. D=1.5 Ft.
l.'-'.J 8=2.0 Ft.
6=5.0 Ft.
FROM srn. zis+oo ro sTn. zn+no -�- �r
DETAIL #29
PIPE OUTLET CHANNEL
�No�to Scole�
�a„� am a�'" ���e
d-3o F.
Length=l2 F. ��jvo,;aeie�Eo
D=3.0 Ft.
Esr. = 15 Tons of Class '1' Rip-Rap
STA.189+40 -L- LT
DETAIL #30
ROADWAY DITCH
lHoem s�oial
r.om
� o� Di�<F
Graund ?') p 1F�o�te� slope
d
Geaienile Min. D=1.0 N.
Type of Liner- Class'B' Rip-Rop Mox. d=1.0 Ft.
FROM STA.10+50 TO STA.15+00 -DRIREV- LT
FROM STA.10+70 TO STA.14+50 -DRIREV- RT
FROM STA.15r50 TO STA.16+50 -DRiREV- RT
FROM STA.10+50 TO STA.12+80 -DR2REV- RT
FROM STA. 10 i� 50 TO STA. 12 i� 00 -0R2REV- LT
FROM STA. 10+50 TO STA. 16+00 -Y9- LT & RT
FROM STA.10+84 TO STA.15'�-00 -DR3- LT
FROM STA. 17 I 30 TO STA. 15 i 00 -0R3- RT
FROM STA. 17+00 TO STA. 19+72 -DR3- RT
FROM STA.17+00 TO STA.19-30 -DR3- LT
FROM STA. 10 i 25 TO STA. 11 +55 -DRS- LT
FROM STA.10+25 TO STA.17+00 -DRS- RT
FROM STA.10+50 TO STA.12+10 -Y13A- RT
FROM STA.10+50 TO STA.12+50 -Y13A- LT
PROIECT REFERENCE NO. SHEET NO.
R-29/58 20-1
ILW SHEET NO.
HYDRAULIC$
ENGINEER

DETAIL #31
FILTER BERM SECTION VIEW
( Not to Scale)
#57 STONE
1.0 FT THICK
�
3.0' Depth ,�
'Y
CLASS 'B' RIP RAP
EST 10 TONS #57 STONE
EST 40 TONS CL B RIP RAP
EST 70 SY GEOTEXTILE
STA. 198 + 00 -L- RT
DETAIL #32 00
FALSE SUMP �F
� rvo� �o Scolej
Oviside Ditch . Iq o,l _
T��,��.� 20:1 '1 f
GI
�-5-
S=Ditch Slope � Proposed Difch
STA. 178+63 -L- RT
STA.182+84 -L- RT
STA. 188+90 -L- RT
STA. 792+15 -L- RT
STA. 195+60 -L- RT
STA 197+14 -L- RT
STA. 256+75 -DET- LT
STA. 14+86 -Y10. LT
STA. 15+72 -Y10- LT
DETAIL #33 No
FALSE SUMP
�Notto Scale)
O�tside Ditch
Traffic Flow
�O.
I �2,1_
r
GI
�- s - er�.
S=Ditch Slope 4 Proposed Diich
STA.1671-37 -L- RT
STA. 171+37 -L- RT
STA.173+87 -L- RT
STA.201+62 -L- LT
STA.204 114 -L- LT
STA. 206 i 64 -L- LT
STA.252+10 -0ET- RT
STA. 72+90 -Y9- RT
STA. 16 -10 -Y9- RT
STA. 14 i 32 -DR3- RT
T MIN. 1' TUCK
�
GEOTEXTILE
FABRIC
DETAIL #34
BERM DITCH _
Q Q �Na��a Smle� �
�F
N 5.0' B 0'
a.o
10.0' V.C. ?�� D �P0..
Min. D=1.0 Ft.
FROM STA.165+45 TO STA. 166+05 -L- RT
FROM STA.770+65 TO STA.771+50 -L- RT
DETAIL #35
RIP RAP SLOPE PROTECTION
� No� �a s�aia�
!s.�
F��sop o,ia ro e�. o�ePifa�a
�-� Nolural
ceote.we c.o��d
Type of Liner- Class'll' R'ip-Rop
FROM STA. 199+70 TO STA.211+65 -l- RT
FROM STA. 215+50 TO STA. 219+20 -L- RT
FROM STA.221-63 TO STA.223+80 -L- RT
Pipe or Di}ch
o�r�er
A
L
Square Prefoi
Scour Hole (F
(Rip Rap in basin
not shown for clari
PREFORMED SCOUR HOLE
*NOT TO SCALE
PLAN VIEW
INSTALL LEVEL AND FLUSH
WITH NATURAL GROUND
A
J
SECTION A-A
p��� PIPE (d = 15" OR 18")
S��p
F �
- PSRM
INFLOW NATURAL
� - GROUND
LINER: CLA55 B RIPRAP F�- B-�i
WITH GEOTEXTILE MIN. 1' TUCK
B D
STATION
FT. FT.
FOR 15" PIPE 4.0 1.0
165+00 -L- LT 4.0 1.0
171+50 -L- LT 4.0 1.0
200+00 -L- RT 4.0 1.0
204+00 -L- RT 4.0 1.0
206+50 -L- RT 4.0 1.0
211+27 -L- RT 4.0 1.0
216+75 -L- RT 4.0 1.0
221+g5 -L- RT 4.0 1.0
231+50 -L- RT 4.0 1.0
232+g0 -L- RT 4.0 1.0
238+00 -L- LT 4.0 1.0
FOR 18" PIPE 6.0 1.0
182+30 -L- LT 6.0 1.0
PROIECT REFERENCE NO.
PERMIT DRAWING R-29�58
S H E ET 3 O F 31 � S"EET "°.
DETAIL #36
(NOT TO SCALE)
SKEWED MULTI-BARREL CULVERT
LOW FLOW CHANNEL,SILLS
AND FLOOD PLAIN
*NOTES:
1) NATIVE MATERIAL BETWEEN SILLSBAFFLES
IN THE CULVERT SHALL PROVIDE A
CONTINUOUS LOW FLOW CHANNEL. NATIVE
MATERIAL CONSISTS OF MATERIAL THAT IS
EXCAVATED FROM THE THE STREAM OR
FLOODPLAIN AT THE PROJECT SITE DURING
CONSTRUCTION. ONLY MATERIAL THAT IS
EXCAVATED FROM THE STREAM BED MAY
BE USED TO LINE THE LOW FLOW CULVERT
BARREL.RIP-RAP MAY BE USED TO
SUPPLEMENT THE NATIVE MATERIAL IN THE
HIGH FLOW CULVERT BARREL S). IF RIP-RAP
IS USED TO LINE THE HIGH LOW CULVERT
BARREL(S), NATIVE MATERIAL SHOULD BE
PLACED ON TOP TO FILL VOIDS AND
PROVIDE A FLAT SURFACE FOR ANIMAL
PASSAGE. NATIVE MATERIAL IS SUBJECT
TO APPROVAL BY THE ENGINEER AND MAY
BE SUBJECT TO PERMIT CONDITIONS.
2) SILLSBAFFLES ARE TO BE 1.0 FT. WIDE, CAST
SEPARATELY AND ATfACHED BY DOWELS.
3) TOP OF LOW FLOW SILLSBAFFLES SHOULD
MATCH STREAM BED ELEVATION IN LOW
FLOW CHANNEL OF STREAM. (THALWEG)
4) DO NOT SET ELEVATION OF HIGH SILLBAFFLES
ABOVE BANK FULL.
5) NUMBER OF SILIBAFFLES DETERMINED BY THE
ENGINEER.
FLOOD PIAIN
BENCH
L
SILL
SILLS AT
INLET AND OUTLET
PLAN VIEW
FLOOD PLAIN
BENCH
SILL � 1
BAFFLE
NUMBER OF BAFFLES=7
ON 38FT CENTERS FROM DOWNSTREAM SILL
I1
SECTION A-A
INLET AND OUTLET CHANNEL
CL 'I' RIP RAP (TYP.)
ON STREAM BANKS
GEOTEXTILE �
CL 'I' RIP RAP
>
, , /
1'
I I e•
I-- e --I
STA. 160 + 40.08 -L- RT
STA. 162 +28.52 -L- LT
SHEET NO.
20 -2
HYDRAULIC$
ENGINEER
s.o�
COIR FIBER
MATf I N G
NG

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Hand Existing Existing
Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural
Site Station Structure Fillln Fillln in Clearing in SW SW Impacts Impacts Stream
No. (From/To) Size / Type Wetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design
(ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft)
1A 159+80 / 160+40 -L- RT BANK STABILIZATION (TRIB.) 0.01 < 0.01 44 21
160+40 / 161+80 -L- CULVERT (TRIB.) 0.05 170
� B 162+15 / 162+30 -L- LT CULVERT (GAP CREEK) < 0.01 < 0.01 15 6
162+15 / 162+65 -L- LT BANK STABILIZATION (GAP CREEK) < 0.01 35
2 165+73 -L- BDO / 30" RCP < 0.01 5
166+00 -L- LT TAIL DITCH < 0.01 29
3 15+32 / 15+00 -DR1 REV- 24" PIPE < 0.01 71
4 172+58 / 172+85 -L- LT 12" RCP < 0.01 0.15 < 0.01
5 174+00 -L- LT 30" CSP < 0.01
6 178+50 -L- LT 24" CSP < 0.01
7 180+00 / 182+00 -L- LT ROAD FILL 0.05 0.03
8 186+21 / 186+43 -L- LT ROAD FILL < 0.01 < 0.01
9 187+63 / 189+15 -L- 36" RCP 0.01 124
189+35 / 189+45 -L- LT BANK STABILIZATION < 0.01 23
10 197+20 / 198+90 -L- BANK STABILIZATION 0.02 154
198+80 / 198+90 -L- WORKPAD / CULVERT REMOVAL 0.02 57
11 207+00 / 207+05 -L- RT ROAD FILL < 0.01 < 0.01
12 208+72 / 209+51 -L- RT ROAD FILL 0.12 < 0.01
13 209+23 -L- LT 24" Pipe < 0.01 < 0.01 52 8
14 210+01 / 210+36 -L- LT ROAD FILL 0.01 < 0.01
15 215+54 / 217+43 -L- RT ROAD FILL 0.14 0.05
16 217+48 -L- LT 60" RCP < 0.01 27
217+45 -L- LT BANK STABILIZATION < 0.01 9
SUBTOTALS*: 0.32 0.15 0.04 0.06 0.12 0.03 758 92
*Rounded totals are sum of actual impacts
NOTES:
Site 10: Total Permanent Pier Impacts = 25.1 SF = 0.0006 AC
Site 15: Fill Imapcts = 0.14 ac, Mechanized Clearing Impacts=0.013, Total Take Impacts=0.036
\TN Revised 3/12/13

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Hand Existing Existing
Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural
Site Station Structure Fillln Fillln in Clearing in SW SW Impacts Impacts Stream
No. (From/To) Size / Type Wetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design
(ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft)
17 217+22 / 217+75 -L- RT BANK STABILIZATION < 0.01 54
18 222+55 / 222+83 -L- RT BANK STABILIZATION < 0.01 53
19 241+75 / 243+25 -L- WORK PAD 0.12 115
20 242+41 / 242+54 -L- RT BANK STABILIZATION < 0.01 19
21 243+31 / 243+46 -L- LT BANK STABILIZATION < 0.01 20
SUBTOTALS*: 0.02 0.12 146 115
SUBTOTALS FROM PAGE 1*: 0.32 0.15 0.04 0.06 0.12 0.03 758 92
TOTALS*: 0.32 0.15 0.04 0.06 0.14 0.15 904 207
*Rounded totals are sum of actual impacts
NOTES:
Site 19: Total Permanent Pier Impacts = 150.8 SF = 0.003 AC
Revised 3/12/13